MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 1

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9th West Bengal Board

IMPORTANT

Earn 100

Every irrational number

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Important Questions on Real Numbers

EASY

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 1

On the number line, the number just next to

\sqrt{2}

is

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 1

The decimal expansion of

\sqrt{2}

is

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 1

If

\sqrt{2} = 1.414 . . . . . . . .

and

\sqrt{8} = 2.824 . . . . . . . . . . .

, then find

{(\sqrt{2} + \sqrt{8})}^{2} =

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 1

If $2^{x^{2} - 5} = 1$ , then $\sqrt{x} =$

Note: The question above is incorrect. The correct answer is written below:

If $2^{x^{2} - 5} = 1$ , then $x =$

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 2

Find a rational number between

\sqrt{5}

and

\sqrt{7}

.

HARD

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 2

Find an irrational number between

\sqrt{5}

and

\sqrt{7}

.

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 2

By taking two examples of irrational numbers prove that their sum is a rational number.

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9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 1 - Real Numbers>EXERCISE-1.3>Q 2

By taking two examples of irrational numbers prove that their product is a rational number.